Gokinjo JK Isezaki-san wa Isekaigaeri no Daiseijo

One day, Matsunaga, an office worker in his 30s, is stabbed by a thug while protecting Seina Isezaki, a high school girl who lives nearby. At the moment when Matsunaga's life is about to end, Seina's body somehow begins to glow, and she revives him from near-death injuries with her mysterious power - and the two of them suddenly find themselves in another world! A fun adventure story about an office worker in his 30s and a high school girl who likes older men, flying around Earth and another world!

(Source: Kadokawa, translated)